Step 1: do I need to have an informed opinion
Step 2: Do I need that opinion NOW
Step 3: WHAT do I need to know NOW
There is a vast amount of conspiracy theorizing that people could avoid by following this approach.
If you decide you are curious and actually want to care about railroad safety, dont react to the current crisis, "hit the books" and read some actually informative material about past events.
Workers have been pushing to get a single day of paid leave per month and threatening a strike - but rail bosses have greedily ignored them to give more money to their stockholders (ie, themselves too). Then Congress voted to force a bad deal.
What you could do is to get informed and see the results of this blatant corruption.
/s